{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377234",
    "entityType": "User",
    "nonce": "0x9fbda0c4335c6ecdfdd569665657461ecf6153fce17faa8f8ba63700ad5b9214",
    "signature": "0xe91e1312be562ee4f3e5cad27af491e8d3344586ba02b485199e475767f1e9863a4f6084fb4efeb24cb11b2e42fa42bbdad67c63b61f980e60f4485536a6b6711c",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}